I've done some searching and I have not be able to find anything about it. I don't know if it's because I am not using the right keywords.

Here is what I had in mind: After you get home, you charge your cell phone next to your LMCE server. The server then connects to the cell phone via Bluetooth. When someone calls your cell phone, your phones connected to your LMCE ring and allow you to answer the cell call.